تفاعل #710049

معادلة التفاعل

Chlorotrimethylsilane

Sodium cyclopentadienide

→

bis(trimethylsilyl)cyclopentadiene

trimethylsilylcyclopentadiene

المذيبات

tetrahydrofuran

ظروف التفاعل

المعالجة

1. 1
   workup.ADDITIONThe reaction mixture is poured into 150 ml of cold,
2. 2
   workup.DISTILLATIONdistilled water and trimethylsilylcyclopentadiene
3. 3
   استخلاصis extracted into diethyl ether
4. 4
   أخرىThe extract is rotary evaporated
5. 5
   أخرىto remove the ethereal solvent
6. 6
   workup.DISTILLATIONdistilled

الإجراء التجريبي

Trimethylsilylcyclopentadiene and bis(trimethylsilyl)cyclopentadiene are prepared by the procedures of Kraihanzel et al., J. Amer. Chem. Soc., 90, 4701 (1968) and I. M. Pribytkova et al., J. of Organometallic Chem., 30, C57-C60 (1971). Sodium cyclopentadienide (44 g, 0.50 mole) is added to 150 ml of tetrahydrofuran. Chlorotrimethylsilane (54 g, 0.5 mole) is added dropwise slowly to the reaction and the stirring is continued for 3 hours. The reaction mixture is poured into 150 ml of cold, distilled water and trimethylsilylcyclopentadiene is extracted into diethyl ether. The extract is rotary evaporated to remove the ethereal solvent and the residue is vacuum distilled to give trimethylsilylcyclopentadiene, b.p. 41° C.-43° C. (16 mm).

المصدر